Element X forms two oxides XO and XO2. If 1 mole of XO contains n atoms, 2 moles of XO2 would contain
A. 3n/2 atoms
B. 2n atoms
C. 3n atoms
D. 6n atoms
有關於atom同mole
2009-04-08 9:02 am
回答 (1)
2009-04-08 9:31 am
✔ 最佳答案
The answer is C.
1 mol of XO contains 2 mol of atoms.
1 mol of XO contain 2L atoms, where L = Avogadro constant
Therefore, n = 2L.
1 mol of XO2 contains 3 mol of atoms.
No. of atoms that 2 mol of XO2 contains
= 3 x 2 x L atoms
= 6L atoms
= 3(2L) atoms
= 3n atoms
=
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